Contact App Gone!

my contact app was gone after i dl-ed Categories.app and pressed "Restart SB" and when it resprung, i had a blank spot on my home screen (where Contact.app used to be) and couldnt get it back! HELP ME PLZ!

EDITTED - NVM i got it.. i just unistalled categories.app and Contacts came back.. SWEET!!! thanks anyone who wanted to help me...